If you're having trouble with your *key fob*, you'll need to either replace the battery or reprogram it (procedures vary depending on the type of fob and whether it's a factory or aftermarket option). If it's a *key*, you'll need to have it replaced or have a locksmith assist you. If an *aftermarket keypad* was added, resetting it depends entirely on the specific make and model of the keypad. The instructions should be with the keypad itself or available from the manufacturer's website.
